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Welcome to the CPL Aerodynamics question and answer forum. Please feel free to post your questions but more importantly also suggest answers for your forum colleagues. Bob himself or one of the other tutors will get to your question as soon as we can.
Hi all,
I'm sitting my CADA exam tomorrow and am doing some PPL (Pilot Prac Exam) prep and was thrown by what they define as the 4 rated turns. They say;
Rate 1 - 2min @ 3deg/sec
Rate 2 - 1min @ 6deg/sec
Rate 3 - 40sec @ 9deg/sec
Rate 4 - 30sec @ 12deg/sec
I was under the impression (as the BT text suggests) it was more like (2min, 1.5min, 1min, 30sec - and the obvious deg/sec).
We are looking at angular time rate of change, hence the degrees/second idea. The 3/6/9/12 idea is the usual story. I wouldn't fuss too much about the times - they are not of any great interest or relevance to anyone except for, maybe, initial Link training.
I had a look at Bob's text (March 2017), pp 100-102. He has tried to simplify the story by avoiding the angular thing as that wouldn't make much sense to a lot of folks. Perhaps this has sent you off on a tangent. I can't imagine that his later editions have anything in the way of a different story.
Perhaps you might usefully have a re-read of the text ?
Engineering specialist in aircraft performance and weight control.
